Respiration quizzes form threeVersion en ligne test your understanding on respirstion par Akinyi Tracy 1 What is the primary purpose of respiration? a To create oxygen for plants. b To produce energy for cellular activities. c To digest food. d To remove carbon dioxide from the body. 2 Which gas is primarily consumed during aerobic respiration? a Oxygen. b Hydrogen. c Nitrogen. d Carbon dioxide. 3 What is produced as a byproduct of anaerobic respiration in yeast? a Glucose. b Carbon dioxide. c Lactic acid. d Ethanol. 4 Where does cellular respiration occur in eukaryotic cells? a Mitochondria. b Ribosomes. c Cytoplasm. d Nucleus. 5 What is the first step of cellular respiration? a Krebs cycle. b Electron transport chain. c Glycolysis. d Fermentation. 6 Which type of respiration occurs in the absence of oxygen? a Anaerobic respiration. b Cellular respiration. c Aerobic respiration. d Photosynthesis. 7 What molecule is the main energy currency of the cell? a Glucose. b NADH. c ATP (Adenosine triphosphate). d FADH2. 8 What is the end product of the Krebs cycle? a Carbon dioxide. b Lactic acid. c Glucose. d Oxygen. 9 Which process occurs in the mitochondria? a Aerobic respiration. b Photosynthesis. c Glycolysis. d Fermentation. 10 What is lactic acid fermentation primarily used for? a To create ATP directly. b To regenerate NAD+ in muscle cells. c To produce glucose. d To release oxygen.
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